.join {
   width:682px;
   height:514px;
   margin-top:-257px;
   margin-left:-341px;
   display:none;
   left:50%;
   position:fixed;
   text-align:left;
   top:50%;
   z-index:102;
}

#overlay {
   height:100%;
   left:0;
   top:0;
   position:fixed;
   width:100%;
   z-index:100;
   background-color:#000;
   filter:alpha(opacity=60);
   -moz-opacity:
   0.6; opacity: 0.6;
   display:none;
}

* html #overlay { /* ie6 hack */
   position: absolute;
   height: expression(document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + 'px');
}

* html .join { /* ie6 hack */
   position: absolute;
   margin-top: expression(0 - parseInt(this.offsetHeight / 2) + (TBWindowMargin = document.documentElement && document.documentElement.scrollTop || document.body.scrollTop) + 'px');
}